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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Yang Li <yang.lee@linux.alibaba.com>,
	Abaci Robot <abaci@linux.alibaba.com>,
	Hans de Goede <hdegoede@redhat.com>,
	Sasha Levin <sashal@kernel.org>,
	Shyam-sundar.S-k@amd.com, markgross@kernel.org,
	platform-driver-x86@vger.kernel.org
Subject: [PATCH AUTOSEL 6.1 02/10] platform/x86/amd/pmf: Fix unsigned comparison with less than zero
Date: Tue, 22 Aug 2023 07:36:20 -0400	[thread overview]
Message-ID: <20230822113628.3551393-2-sashal@kernel.org> (raw)
In-Reply-To: <20230822113628.3551393-1-sashal@kernel.org>

From: Yang Li <yang.lee@linux.alibaba.com>

[ Upstream commit 785c00993dc4c4bb2f7b0f3a3f29c03a6f7aab2e ]

The return value from the call to amd_pmf_get_pprof_modes() is int.
However, the return value is being assigned to an unsigned char
variable 'mode', so making 'mode' an int.

silence the warning:
./drivers/platform/x86/amd/pmf/sps.c:183:5-9: WARNING: Unsigned expression compared with zero: mode < 0

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=5995
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230727014315.51375-1-yang.lee@linux.alibaba.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/amd/pmf/sps.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/amd/pmf/sps.c b/drivers/platform/x86/amd/pmf/sps.c
index fd448844de206..b2cf62937227c 100644
--- a/drivers/platform/x86/amd/pmf/sps.c
+++ b/drivers/platform/x86/amd/pmf/sps.c
@@ -121,7 +121,8 @@ int amd_pmf_get_pprof_modes(struct amd_pmf_dev *pmf)
 
 int amd_pmf_power_slider_update_event(struct amd_pmf_dev *dev)
 {
-	u8 mode, flag = 0;
+	u8 flag = 0;
+	int mode;
 	int src;
 
 	mode = amd_pmf_get_pprof_modes(dev);
-- 
2.40.1


           reply	other threads:[~2023-08-22 11:38 UTC|newest]

Thread overview: expand[flat|nested]  mbox.gz  Atom feed
 [parent not found: <20230822113628.3551393-1-sashal@kernel.org>]

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